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Vilka [71]
3 years ago
9

Please answer asap if u know the answer!!!! completing a square. thank you!!!!

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

D

Step-by-step explanation:

The equation of a parabola in vertex form is

f(x) = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form using the method of completing the square.

Given

f(x) = 3x² - 24x + 10

We require the coefficient of the x² term to be 1 , thus factor out 3

3(x² - 8x) + 10

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

= 3(x² + 2(- 4)x + 16 - 16) + 10

= 3(x - 4)² + (3 × - 16) + 10

= 3(x - 4)² - 48 + 10

= 3(x - 4)² - 38, thus

f(x) = 3(x - 4)² - 38 ← in vertex form

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Rahul have 55 chocolate he gave 4/5 chocolate to his friend how much chocolate are left with him​
garri49 [273]

Answer:

<h2><u><em>11</em></u></h2>

Step-by-step explanation:

Rahul have 55 chocolate he gave 4/5 chocolate to his friend how much chocolate are left with him​

55 = 5/5

5/5 - 4/5 = 1/5

55 : 5 = <u><em>11</em></u>

5 0
1 year ago
Find the area of the sector, show work please!! 25 points
olasank [31]

OPTION A is the correct answer.

6 0
3 years ago
Which algebraic expression is a trinomial?
Goryan [66]

Answer: A trinomial consisting of three terms.

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7 0
3 years ago
I need help.. 
Debora [2.8K]
This is exactly like the one with the 'n's that you posted yesterday.
I guess you didn't get enough help on that one to understand it.

<span><u>7k/8 - 3/4 - 5k/16 = 3/8</u>

3/4 is the same as 6/8.
Add it to each side of the equation:

7k/8         - 5k/16 = 9/8

Multiply each side by 16 :

14k - 5k = 18

Add up the 'k's on the left side:

9k = 18

From this point, you can proceed directly to the numerical value of 'k'
if you need it.<u />

In your question, you said you need help, and I showed you how to
strip the problem down so that the only thing left is ' k = something '.
Giving you the answer is no help.  Nobody actually needs the answer.
</span>


8 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!!
hoa [83]

9514 1404 393

Answer:

  • a = 17
  • ∠ABC = 78°

Step-by-step explanation:

The marked angles form a linear pair, so have a sum of 180°.

  (4a +10) +(6a) = 180

  10a = 170 . . . . . . . . . . subtract 10

  a = 17 . . . . . . . . . . . . . divide by 10

__

Then the measure of angle ABC is ...

  ∠ABC = 4a +10 = 4(17) +10 = 68 +10 . . . . . substitute 17 for 'a'

  ∠ABC = 78°

5 0
3 years ago
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